40008680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{863}}^1$

素因数の和:954

約数の個数: 64

約数和(自身を含む): 96422400

約数和(自身を除く): 56413720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 61, 76, 95, 122, 152, 190, 244, 305, 380, 488, 610, 760, 863, 1159, 1220, 1726, 2318, 2440, 3452, 4315, 4636, 5795, 6904, 8630, 9272, 11590, 16397, 17260, 23180, 32794, 34520, 46360, 52643, 65588, 81985, 105286, 131176, 163970, 210572, 263215, 327940, 421144, 526430, 655880, 1000217, 1052860, 2000434, 2105720, 4000868, 5001085, 8001736, 10002170, 20004340, 40008680]

約数ペア:

[(1, 40008680), (2, 20004340), (4, 10002170), (5, 8001736), (8, 5001085), (10, 4000868), (19, 2105720), (20, 2000434), (38, 1052860), (40, 1000217), (61, 655880), (76, 526430), (95, 421144), (122, 327940), (152, 263215), (190, 210572), (244, 163970), (305, 131176), (380, 105286), (488, 81985), (610, 65588), (760, 52643), (863, 46360), (1159, 34520), (1220, 32794), (1726, 23180), (2318, 17260), (2440, 16397), (3452, 11590), (4315, 9272), (4636, 8630), (5795, 6904)]